Tehran’s provisional Friday Prayers Leader Ayatollah Seyed Ahmad Khatami called on Iranian officials to keep vigilant against the plots hatched by the US officials to influence and penetrate into the country's decision-making bodies through the recent nuclear agreement.

Addressing a large and fervent congregation of the people on Tehran University campus on Friday, Ayatollah Khatami said, "To say that the US has done a favor by signing an agreement with Iran is to adorn the enemy; (US President Barack) Obama was signing new sanctions against Iran as at the same time he was signing the Joint Comprehensive Plan of Action (JCPOA) with us and this means that the US is the same Satan of the previous years."

The senior Iranian cleric reiterated that the country's officials should be vigilant against the western countries' penetration in Iran's key sectors.

Iran and the world powers reached a final agreement in Vienna on July 14 to end a 13-year-old nuclear standoff.

In relevant remarks some days after the agreement, Ayatollah Khamenei underlined the nuclear agreement between Tehran and the six world powers would not change Iran's policy towards the US.

"In any case the policy of the Iranian nation and the Islamic Republic system vis-à-vis the US will not change," Ayatollah Khamenei said, addressing worshippers in the Eid al-Fitr (marking the end of the holy month of Ramadan) prayers in Tehran.

Also, on August 17, Ayatollah Khamenei stressed that regardless of the nuclear agreement with the world powers, Tehran would not allow the US to find a way to influence Iranian economy, politics and culture.

Addressing participants in the 8th International General Assembly of Islamic Radios and Televisions Union in Tehran, Ayatollah Khamenei referred to the recent nuclear agreement between Iran and the world powers, and said, "Washington imagined that it could use this agreement whose fate is not clear yet - as its final approval is not yet a definite fact neither in Iran nor in the US - to find a way to influence in Iran; and this was their intention."

But "we closed this path; and we will definitely keep it closed", he underlined.

"We will not allow the US to influence (our) economy, or politics or culture. We will stand against such penetration with all our power - that, thanks God, is at a high level today," Ayatollah Khamenei said.